The field library / Collection 09
Angelite.
A closer look at the name.
Angelite refers to blue anhydrite, CaSO₄, not hydrated gypsum CaSO₄·2H₂O. It is a soft collector and occasional lapidary material; keep it dry and do not turn a trade label into a mine-origin claim.
Open the collection card ↓
Reference object; not Stone Parade inventory or a product-origin certificate.
01 / The expanded collection card
A name.
A mineral identity.
Angelite refers to blue anhydrite, CaSO₄, not hydrated gypsum CaSO₄·2H₂O. It is a soft collector and occasional lapidary material; keep it dry and do not turn a trade label into a mine-origin claim.
Primary research · Angelite ↗Specimen identification pending. This chapter explains a material category, not an identification of a supplied product.
- Chinese name
- 天使石
- Crystal system
- Orthorhombic
- Material identity
- Blue anhydrite / trade name
- Composition
- CaSO₄
- Mohs hardness
- 3–3.5
- Luster
- Glassy to pearly
Hardness describes scratch resistance, not resistance to breaking. These values follow the cited material references; reported ranges can vary between publications. Inclusions, mixtures and treatments can affect an individual piece.
02 / A moment of observation
Look a little closer.
The name, unpacked
Angelite refers to blue anhydrite, CaSO₄, not hydrated gypsum CaSO₄·2H₂O. It is a soft collector and occasional lapidary material; keep it dry and do not turn a trade label into a mine-origin claim.
Light and texture
Observe several angles in soft daylight. Color, sparkle and surface texture alone cannot identify a specimen.
A record worth keeping
Keep the original material label, any analytical report and treatment disclosure together.
Observation builds familiarity; it does not replace identification. Avoid scratch, acid or destructive tests on a collection piece.
03 / The geological story
Made by the earth.
Recorded with care.
How it forms
Anhydrite forms in evaporitic and other sulfate-bearing settings. It is the anhydrous calcium sulfate species, chemically distinct from gypsum.
Primary research · Angelite ↗An example to explore
Pictured reference / source-record locality
The pictured blue anhydrite is recorded from Naica, Chihuahua, Mexico. It is a crystal specimen, rather than proof of the origin of all polished Angelite. This is the reference record’s locality, not an origin certificate for a Stone Parade item. Identification and product sourcing require their own documentation.
Reference photograph · original specimen record ↗What does this tell me about my stone?
A recorded occurrence gives geological context. Your Stone Parade piece needs its own batch information before a locality can be stated. Keep an original specimen label or documented supplier record with the collection card.
04 / From a material to an object
Ways to wear.
Ways to keep.
A pause in pictures
From earth to a collection.
A closer look at a documented reference for angelite. Check the caption for the exact material shown.
Reference photographFor careful display. This material is soft, fragile or otherwise poorly suited to ordinary wear. Any jewelry style studies are design possibilities, not wearability recommendations. Natural specimens should be kept for protected display.
Jewelry & practical use
Angelite refers to blue anhydrite, CaSO₄, not hydrated gypsum CaSO₄·2H₂O. It is a soft collector and occasional lapidary material; keep it dry and do not turn a trade label into a mine-origin claim. Jewelry suitability also depends on fractures, matrix, treatment and the setting. Protect exposed edges and keep collection specimens stable.
One useful distinction
A raw stone describes a finish. A mineral specimen describes an object kept for its features or locality. The terms can overlap, and a specimen does not have to be large.
In Stone Parade, the mineral selection may be a raw stone or a collector-sized mineral specimen.
05 / A little thoughtful care
Keep the beauty.
Keep the story.
Choose a method for the whole object: stone, matrix, cord, metal and any treatment. A care shortcut that suits one material can damage another.
Know the whole object
Consider the host, inclusions, matrix, cord, metal and any treatment before cleaning.
Start gently
Use a soft dry cloth or brush for a stable surface; avoid soaking an unknown composite or delicate specimen.
No destructive tests
Do not grind, acid-test, heat or scratch a collectible to resolve a trade name.
Before you collect / treatments, names & provenance +
Angelite refers to blue anhydrite, CaSO₄, not hydrated gypsum CaSO₄·2H₂O. It is a soft collector and occasional lapidary material; keep it dry and do not turn a trade label into a mine-origin claim. Ask for the actual material identity, treatment history and documented provenance. A trade name or reference photograph cannot certify a future Stone Parade piece.
Personal symbolism is individual. The crystal-culture section explores symbolism separately from the mineral science and care references.
Another way to connect / Crystal culture
Meaning, energy
& personal ritual.
Alongside its geological story, angelite can become a personal symbol. Explore healing traditions and chakra language as cultural beliefs and reflection prompts.
Symbolic associations, not established medical effects. Crystals have not been shown to treat illness or balance a measurable human energy field.
Your reflection themes
✧Calm & rest ↗
A quiet mood and a pause from the pace of the day.
Clarity & reflection ↗
An invitation to look closely and consider another perspective.
Stone Parade editorial pairings for this chapter’s color or featured variety. Interpretations differ among authors and practitioners.
A chakra reading lens
Crown / Sahasrara
A symbolic focus on meaning, contemplation and a sense of connection beyond oneself.
A contemporary seven-center, color-based reading guide. Chakras belong to South Asian spiritual traditions; these stone pairings are not a universal ancient chart or anatomical structures.
Place the stone nearby and take a brief, comfortable pause without expecting the stone to change your health. Keep delicate stones safely on a surface; no water, salt or heating is needed.
Healing, energy & the sources behind this section +
In contemporary crystal practice, “healing” and “energy” often describe beliefs about subtle energies, intention and personal experience. Such language is different from measured mineral properties or demonstrated treatment effects. This section offers optional symbolism and does not replace healthcare.
The museum sources document beliefs and objects, not clinical efficacy. In a 2025 controlled study of rose quartz and a matched placebo, anxiety changes did not show a crystal-specific benefit beyond placebo. That study does not test every stone or every practice.
Our tags are transparent editorial reflection pairings, informed by the contemporary color-based approach; these sources do not validate every stone-to-chakra correspondence. Mineral science references remain in the chapter’s own research section.
06 / Follow the research
Curiosity, with
something to follow.
Care references & editorial notes +
Care suggestions combine the specific sources above with GIA’s jewelry care guidance. Recommendations are deliberately conservative when a piece’s treatment or matrix is unknown. IMA-CNMNC and RRUFF provide further nomenclature and analytical research; listing them does not imply laboratory testing of a Stone Parade item. Some older Handbook entries preserve historical names; chapter-specific modern nomenclature references take precedence where noted.
Reference properties and locality examples reviewed October 30, 2026. Photographs show particular objects. Jewelry style studies show possibilities, not an inventory promise.
Keep your curiosity going
